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CC2530: Driving current into a digital pin of the device while VCC is 0V

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Part Number:CC2530

Hi Team ,

My customer had asked us the following quastion :

Quote:

We use the device CC2530F256RHAR in one of our product.

We would like to know what is the maximum current we can drive into a digital pin of the device , when VCC is 0V, without causing any damage .

 can you please asist us for this request ? 

: Unquote.

Please aedvise the answer soon.

 

Best regards ,

Arik.P.

AFAE , TI


CCS/CC1350: How to create a task for the GPTimer26XX.h example?

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Part Number:CC1350

Tool/software: Code Composer Studio

I'm trying to use the example function for the timer driver, but I didn't understand a few things:

http://dev.ti.com/tirex/content/simplelink_cc13x0_sdk_1_30_00_06/docs/tidrivers/doxygen/html/_g_p_timer_c_c26_x_x_8h.html

void taskFxn(UArg a0, UArg a1) {
  GPTimerCC26XX_Params params;
  GPTimerCC26XX_Params_init(&params);
  params.width          = GPT_CONFIG_16BIT;
  params.mode           = GPT_MODE_PERIODIC_UP;
  params.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
  hTimer = GPTimerCC26XX_open(CC2650_GPTIMER0A, &params);
  if(hTimer == NULL) {
    Log_error0("Failed to open GPTimer");
    Task_exit();
  }
  Types_FreqHz  freq;
  BIOS_getCpuFreq(&freq);
  GPTimerCC26XX_Value loadVal = freq.lo / 1000 - 1; //47999
  GPTimerCC26XX_setLoadValue(hTimer, loadVal);
  GPTimerCC26XX_registerInterrupt(hTimer, timerCallback, GPT_INT_TIMEOUT);
  GPTimerCC26XX_start(hTimer);
  while(1) {
    Task_sleep(BIOS_WAIT_FOREVER);
  }
}

What do reference arguments a0 and a1 account for?

And how do I create tasks that will use this function?

Thank you

CC1352P: CC1352P plug SHARP96, can't make it work

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Part Number:CC1352P

Hi Team,
                   I can make it run using CC1350 plus SHARP96, but failed on CC1352P. I used the "simplelink_cc13x2_sdk_2_30_00_45" and "simplelink_cc13x0_sdk_2_30_00_20" for test. both run the display demo as below picture. also I noticed the define requirement to support sharp96.

/* This value can be changed to 96 for use with the 430BOOST-SHARP96 BoosterPack. */
#define BOARD_DISPLAY_SHARP_SIZE 96

                   Also I'm bit confuse about below this enum. for example, The RED Led, It is IOID_6 . In the BoardGpioInitTable, it list at the first row. but in below enum, it list at 5th and the behavior is right using the GPIO_write.  Can you please explain a bit about this enum? What is it logic?

GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_ON);

typedef enum CC1352P1_LAUNCHXL_GPIOName {
CC1352P1_LAUNCHXL_GPIO_S1 = 0,
CC1352P1_LAUNCHXL_GPIO_S2,
CC1352P1_LAUNCHXL_SPI_MASTER_READY,
CC1352P1_LAUNCHXL_SPI_SLAVE_READY,
CC1352P1_LAUNCHXL_GPIO_LED_GREEN,
CC1352P1_LAUNCHXL_GPIO_LED_RED,// 5
CC1352P1_LAUNCHXL_GPIO_SPI_FLASH_CS,
CC1352P1_LAUNCHXL_GPIO_DIO_19,//7
CC1352P1_LAUNCHXL_GPIO_LCD_CS,//8
CC1350_LAUNCHXL_GPIO_LCD_POWER,//9
CC1352P1_LAUNCHXL_GPIO_LCD_ENABLE,//10
CC1352P1_LAUNCHXL_GPIOCOUNT
} CC1352P1_LAUNCHXL_GPIOName;

BQ77915: 00

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Part Number:BQ77915

The description as below is in the datasheet

"The bq77915 device supports 3-series to 5-series cell configurations. Up to four devices can be stacked to
support ≥6-series cell configurations, providing protections up to a 20-series cell configuration. It is possible to
support greater than 20-series cell configurations, but with careful consideration of delays."

IS BQ77915 suitable for the application 26-series cells? If it be, how am I careful consideration of delays?

TPS62172: The IC works at the critical point of the CCM and DCM modes, will there be any problems?

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Part Number:TPS62172

Hi team,

the IC work condition: Vin=7V   Vout=3.3V      Fsw=2.25MHz      L=2.2uH

customer's work current is 179mA, it is very close to 176mA, they tested the waveform of IL is like below picture. it seems the IC  switches between CCM and DCM mode. Will there be any problems for the IC? Is it necessary for the customer to modify the parameters to avoid this phenomenon?

CCS/MSP430FR6047: How to share project with co-worker

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Part Number:MSP430FR6047

Tool/software: Code Composer Studio

Hi,

I am using CCS 8.1 - 8.2 would not install properly on my system, even with days of effort on the TI forum.

Anyway, I'm using the Ultrasonic Water meter code. It was recommended by TI that I install this project in the C:\ti\msp directory so that it would have access to the MSP430Ware that resides there. This has worked fine.

However, I've revisioned my project (to not corrupt original TI code, and to add my revisions). I did this using COPY and PASTE in the Project Explorer window. Upon doing this, it saves the project into the workspace_v8 directory (and changes all the paths in the project). Upon archiving the project, and sharing with co-worker, a bunch of paths are now incorrect. If I request to save the project in the ti/msp directory, CCS ignores this request and writes to workspace_v8 anyway.

What is the recommended way to version this type of project and share it among team members?

DLP3010EVM-LC: DLP3010EVM-LC board not working properly

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Part Number:DLP3010EVM-LC

Dear Sir,

Kindly know that the DLP3010EVM-LC evaluation board we have purchased, is not working properly. We have used two different adapters with the DLP3010EVM-LC evaluation board. With both the adapters the results have been the same. The "P3P 3V LED" starts to blink, but it does not get stably on. I am attaching the photos of both the adapters. At the same time, below is the link of the video I have made for your reference.

drive.google.com/.../view

Adapter1 - drive.google.com/.../view

Adapter2 -  drive.google.com/.../view

Invoice -  drive.google.com/.../view


Additional Information -  The 2 fans below the board are not turning on.
I have checked the voltage on the fans pins(Red and black wire pins) ,
there was 0 volts on it.

I am attaching the invoice photo as well. I have already raised this issue at support@ti.com, where Mr Ahmed Tuna(Texas Instruments, TI Customer Support) has already agreed that my problem is genuine and the board will have to be replaced. He has asked me to raise the issue here again. 

I request you to kindly replace my board or do the needful as early as possible.



Thanks & Regards
Anmol Arora



#2 IInd Floor I 1568-A BhagirathPalace I Delhi – 110006 I India
+91 11 23862460
+91 9873301072
www.sunmicroinvit.com <www.sunmicroinvit.com>

E-Components I  LightingComponents & Modules I  LED Lighting

CC3200: sl_Recvfrom stop receiving packets some times after setting the Power policy to Always on.

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Part Number:CC3200

Hi,

I'm using a simple UDP Application where CC3200 send and receive packets over UDP.

Initially i was using the power policy NORMAL (sl_WlanPolicySet(SL_POLICY_PM , SL_NORMAL_POLICY, NULL,0)) , everything was working good.

Now after changing the power policy to ALWAYS ON  (sl_WlanPolicySet(SL_POLICY_PM, SL_ALWAYS_ON_POLICY, NULL,0), sl_Recvfrom stop receiving packets some times.

What i find in this case CC3200 successfully able to send packets over UDP but not able to receive the packets, But if i restart the NWP it start receiving the packets again.

My questions:

1). Does after setting the power policy to ALWAYSON there is some issue with the sl_recvfrom or i'm not setting the power policy in the right manner?.

2). Page 27 of the user guide   http://www.ti.com/lit/ug/swru368b/swru368b.pdf 

Section 4.6.2 Power policy for setting power policy ALWAYS ON it is mention "This policy is user-directed; the user may provide the target latency figure" what is latency figure?

Also is there any way i can check the health of the NWP ? is there any API for that?

Thanks,

Mahesh


CCS/TMS320F28069M: Every time I open project(Buck_VMC_F28069M)and rebuild , the code will automatically change!

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Part Number:TMS320F28069M

Tool/software: Code Composer Studio

Hi,

I am trying to modify the system clock in project Buck_VMC_F28069M.

I changed clock setting in function DeviceInit(). I also changed the definition in Buck_VMC_Setting.h:

original:

#define CPU_SYS_CLOCK 90000

after change:

#define CPU_SYS_CLOCK 48000

I got it work at first time. But  when i rebuild or reopen this project next time the code above will auto change to original. 

I got confused about this and i have no idea. I don't want to overwrite this line by my hand every time i build this project.

I appreciate your support to enable me to sort out the issue.

Thanks & Regards

TPS25810A-Q1: Function of current source on CC pin(Type C)

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Part Number:TPS25810A-Q1

Hi,

I am not sure the function of the current source connected with the CC pin. If this current source output ISO, or used for select the broadcast current, or for other

function? Thank you.

BQ25881: Standalone operation

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Part Number:BQ25881

Dear TI,

I was wondering if the bq25881 can be used as a standalone device?

For example, once the configurations are all set up with bqStudio and the EV2400, will it operate as a powerpath management system accepting a charge and providing power to the system?

Also, if power to system is provided by the battery only (2S configuration) can it output 5V up to 2A?

I imagine this could be set up with bqStudio.

If the answers are yes to the above questions, this is a perfect new solution for several applications!

Thanks much,

Kevin

Linux/AM3352: some problems with the am3352 and ch340G

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Part Number:AM3352

Tool/software: Linux

hi all:

I have some problems with the am3352 and ch340G,a USB to serial port chip。

        Am3352 has used kernel versions of 4.4.113 and 4.1.6 respectively, and USB serial interface chips are driven by ch340G manufacturer's official network, such as accessories.

       The test method is as follows. Two serial ports of devices A and B are connected to each other. First, A sends 2K data with counting flag to B. When B receives the data, it checks the integrity of the data and counts correctly. After checking correctly, all the data received by B will be sent back to A. After receiving, A will check whether the received data is the data sent by itself. Then send the next frame.

       Normally, the sending and receiving data are OK.

      The error is as follows: when sending a certain frame of data, you can not send 2K data completely, and the data must be a multiple of 32 bytes.

       Tracking the driver of ch340G, we found that his main process is: when sending data, call the write function, which will submit a URB to the USB subsystem, including 32 bytes of data. When the data is sent, the USB subsystem calls the driven completion function and continues to send the next 32 bytes of data in the completion function until all the data is sent. When an error occurs, the driver's completion function is not called when a 32-byte data is sent in the middle, resulting in the subsequent data being unable to continue to be sent. But the specific reasons were not found.

       This phenomenon does not necessarily occur for a few minutes or one or two hours.

        Testing the driver of the CH341 brought by the kernel will also lead to abnormal transmission.

        On the hardware, there is no abnormal data sending and receiving when the circuit related to the serial port of the USB is flown out to connect to other CPU chips.

       Can someone help me?  Thank you very much!

(Please visit the site to view this file)

TM4C123GE6PM: Different examples of Globally and Locally defined variables

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Part Number:TM4C123GE6PM

Hello,

I'm comparing the definitions of variable in both of these examples:

Section 15.3 of this document:

"www.ti.com/.../spmu371d.pdf"

vs 

lab 14 of this document

"software-dl.ti.com/.../TM4C123G_LaunchPad_Workshop_Workbook.pdf"

In the first example:

tI2CMInstance sI2CInst;

tMPU6050 sMPU6050;

Are declared locally inside a function.

In the second example - very similar variables exist:

tI2CMInstance g_sI2CInst;

tISL29023 g_sISL29023Inst;

But these are declared globally outside of main.

Why the difference ?

TS3USBCA4: Recommended Land Pattern

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Part Number:TS3USBCA4

Support Team

My customer request the recommended land pattern and solder mask detail of TS3USBCA4. Please share it with me. I prefer to the documents if possible.

Thanks

Tamio

TDA3XEVM: Where are video frames stored in IssCapture link ?

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Part Number:TDA3XEVM

I have been looking at issCaptureLink_drv.c, issCaptureLink_priv.h, and issCaptureLink_tsk.c but unable to fully understand movement of frames.

Does IssCaptureLink_drvAllocFrames( ) call FVID2_queue( ) to insert Three frames in a queue every task loop?  If yes, from where does IssCaptureLink_drvAllocFrames( ) get frames or where were they stored previously?

My capture settings are:  OV10640 Sensor 720P30 - CSI2 (TDA3x ONLY)

I want to see frame pixels in debugger for Iss Capture Link.

Regards,


OP07: Calculation of output impedance of operational amplifiers in practical use

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Part Number:OP07

Hi, TI engineer!

As shown in the above figure.Input is battery voltage.OP07 operational amplifier differential.Input to DSP ADC pin.How to calculate the output impedance of the operational amplifier in the red mark position of the picture(It is also the input impedance of ADC.)Please help me.Thank you very much.

SN65DSI83: SN65DSI83 has no LVDS output

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Part Number:SN65DSI83

                                      picture 1

The picture 1 is the Lvds panel SPC.

  

                                                       picture 2

The picture2 is CSR setting.

TEST result:

1、MIPI CLK

2、MIPI_DATA

3、LVDS OUT :CLK

4、LVDS OUT:D0

LVDS OUT: D1/D3

LVDS OUT :D2

USE tuner tool test pattern :

LVDS OUT:CLK

LVDS_D0

LVDS_D1

LVDS_D2

LVDS_D3

Circuit diagram:

Question:

1、The tuner tool setting is OK?

2、LVDS out is NG,why,help me。What can I check?

3、IN Test pattern mode,the LVDS  is OK?

4、Can you provide me with a usable setting according to my  LCD specification.

CCS/CC3220: Need to Test BLE exmple

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Part Number:CC3220

Tool/software: Code Composer Studio

Hello Support,

Can you provide me below information:

  1. Support for BLE is available for this device? If yes, Please provide application for this to execute at our end:
  2. Is this board is having support 5Ghz.

Br,

Sachin

CC1352P: Release time for the chip

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Part Number:CC1352P

Hi,

The preview silicon is available right now for this chip, but its not active yet. I want to choose this chip for one of the products i am designing. When can we expect this chip to be active?

CCS: MSP430FR2633 Captivate Evaluation Board

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Tool/software: Code Composer Studio

Hello,

I am using the CAPTIVATE-FR2633 with CapTIvate BSWP.

I implemented  the wheel sensor via Captivate Design Center and it is working fine. ( I am turning on and off an LED when the position is over a limit).

I would like to setup my own UART in order to send the value of the position.

How could i turn off the online tuning feature that is using by Captivate Design Center?

Best Regards,

Thanos

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